XML issue

[C# newbie]

Hi Group,

I have a problem with XML! I have an xml file which starts like this:

<Plaftorm PlatformName="empty" PlatformID="1" StyleUsage="URL"
xmlns="http://www.domain.com" PatformProgrammer="mynamehere"
DateTime="09/12/2003 6:00:54 PM">
.......
......
</Plaform>

When I changed it to something like below, the XPath search works fine.

<Plaftorm >
.......
.....
</Plaform>

Any idea?

Thx

 

[Mickey Williams]

Hard to say, because:

- You've given us XML that isn't well-formed (although it looks like a
typo, you've done it twice).
- You haven't said what the problem is. Everybody has problems with XML.
However, the solution depends on exactly which particular problem you're
having

 

[C# newbie]

Mickey,

It's not my xml. I've been told to do some process on it and when
I removed some part of header it worked just fine!
Again The problem is that when the XML starts with <Platfom> my XPath
function works good but in its native form no!
It ignores some of my queries!

Let me know if you need more info.

Thanks in advance

 

[john farrow]

When you change from

<Plaftorm xmlns="http://www.domain.com"

to

<Platform ...

you change the default namespace. An XPath expression has to match the
namespace as well as the element name, so in the first example XPath like
select="/Platform" won't work because it does not specify the namespace that
the Platform element is in.

 

[Ash]

Just agreeing with the namespace issue.

I had this problem when first using XML and referred to this document:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnexxml/html/xml05202002.asp

Taking your example, making one spelling correction for the closing root element, adding the necessary additions to support the namespace, and an extra element to test it I get this:

System.Xml.XmlDocument xd = new XmlDocument();

xd.InnerXml = "<Plaftorm PlatformName=\"empty\" PlatformID=\"1\" StyleUsage=\"URL\" xmlns:xslt=\"http://www.domain.com\" PatformProgrammer=\"mynamehere\" DateTime=\"09/12/2003 6:00:54 PM\"><xslt:a>datafora</xslt:a></Plaftorm>";
XmlNamespaceManager nsMgr = new XmlNamespaceManager(xd.NameTable);
nsMgr.AddNamespace("xslt","http://www.domain.com");
XmlNodeList nodes = xd.SelectNodes("//xslt:a", nsMgr);
Console.WriteLine(nodes.Count);

Another option would be to remove the namespace from the xml completely:

xd.InnerXml = "<Plaftorm PlatformName=\"empty\" PlatformID=\"1\" StyleUsage=\"URL\" PatformProgrammer=\"mynamehere\" DateTime=\"09/12/2003 6:00:54 PM\"><a>datafora</a></Plaftorm>";
XmlNodeList nodes = xd.SelectNodes("//a");
Console.WriteLine(nodes.Count);

hope this helps.

 

[C# newbie]

Ash,

Thanks for your detailed answer really thanks. However, i have a
question about "a" ! what does "a" do in "//xslt:a"?

nsMgr.AddNamespace("xslt","http://www.domain.com");
XmlNodeList nodes = xd.SelectNodes("//xslt:a", nsMgr);

Sorry since i'm new i'm not that fast on this!

thx

Just agreeing with the namespace issue.

I had this problem when first using XML and referred to this document:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnexxml/html/xml05202002.asp

Taking your example, making one spelling correction for the closing root

element, adding the necessary additions to support the namespace, and an
extra element to test it I get this:

System.Xml.XmlDocument xd = new XmlDocument();

xd.InnerXml = "<Plaftorm PlatformName=\"empty\" PlatformID=\"1\"

StyleUsage=\"URL\" xmlns:xslt=\"http://www.domain.com\"
PatformProgrammer=\"mynamehere\" DateTime=\"09/12/2003 6:00:54

XmlNamespaceManager nsMgr = new XmlNamespaceManager(xd.NameTable);
nsMgr.AddNamespace("xslt","http://www.domain.com");
XmlNodeList nodes = xd.SelectNodes("//xslt:a", nsMgr);
Console.WriteLine(nodes.Count);

Another option would be to remove the namespace from the xml completely:

xd.InnerXml = "<Plaftorm PlatformName=\"empty\" PlatformID=\"1\"

StyleUsage=\"URL\" PatformProgrammer=\"mynamehere\" DateTime=\"09/12/2003

XmlNodeList nodes = xd.SelectNodes("//a");
Console.WriteLine(nodes.Count);

hope this helps.

 

[C# newbie]

Thanks for reply. So, what do you suggest me to do to fix it. Since it's not
my Xml. I have to fix that up just need some lights on it. Thanks in advance

newbie